remove testr init from run_tests.sh

[Kui Shi]

Don't need to init testr explicitly

In run_tests.sh, function init_testr will initialize testr if the
directory .testrepository is not existed. Actually, testr will do
the check before run the test:

In Python package testrepository, setuptools_command.py:Testr.run

68 def run(self):
69 """Set up testr repo, then run testr"""
70 if not os.path.isdir(".testrepository"):
71 self._run_testr("init")

So, init_testr can be removed safely.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/44841

[Kui Shi (skuicloud)]

only "python setup.py testr" will trigger the function to create .testrepository if not exist.
run "testr run" directly will not trigger it.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/44841
Committed: http://github.com/openstack/python-cinderclient/commit/b757c348b758fb5517cc0a08675b6c3ae8a7538e
Submitter: Jenkins
Branch: master

commit b757c348b758fb5517cc0a08675b6c3ae8a7538e
Author: Kui Shi <email address hidden>
Date: Tue Sep 3 04:39:24 2013 +0800

    Don't need to init testr explicitly

    In run_tests.sh, function init_testr will initialize testr if the
    directory .testrepository is not existed. Actually, testr will do
    the check before run the test:

    In Python package testrepository, setuptools_command.py:Testr.run

    68 def run(self):
    69 """Set up testr repo, then run testr"""
    70 if not os.path.isdir(".testrepository"):
    71 self._run_testr("init")

    So, init_testr can be removed safely.

    Fixes Bug #1220147

    Change-Id: Ide99a836cd601453624c7a562b7256c86bd46811